I always do what us71na does on bumper pulls when new. Use the same Hopkins levels too. I always run a little bead of Geocel around them to keep them from moving. I used to use the BIG LEVELS on the fifth wheels, but over time didn't see the need.
John and Rebecca Dickson
Emma-8 / Little John-5 / Iva-1+
2013 Ford F-350 Lariat FX4, CC LB PSD, DRW
2015 Jayco Jay Flight 28BHBE (#8)